If you think you've been hearing full-quality audio from your portable CD player...I have some bad news for you. Featured music: "Grow Up" by Gloria Tells Sources: Sony D-150 photo: https://www.flickr.com/photos/3401903... Sony D-515 photos: https://hifi-wiki.com/index.php/File:... / restoring_a_sony_d515 https://marlene-d.blogspot.com/2012/0... "Sony Scoops the Competition," The Edmonton Journal, May 21, 1992. Philips AZ-6847 photo: https://www.lazada.co.th/products/2-c... "CD Portables: The Beethoven Test," Stereo Review, July 1992. Circuit City TV commercial: • Circuit City commercial - 1993 Obsolete Sony newsletter about ESP: https://obsoletesony.substack.com/p/h... L.A. Trade advertisement, PC Magazine, April 28, 1992. Bell Labs aerial photo: https://commons.wikimedia.org/wiki/Fi... "Adaptive Quantization in Differential PCM Coding of Speech, The Bell System Technical Journal, September 1973, pp. 1105-1106 "No Skipping," Popular Science, June 2000. "The Billboard Bulletin," June 27, 1992. Sanyo CDP-370 photo: https://www.ebay.co.uk/itm/267039540974 Philips AZ-7566 photo: https://www.ebay.com/itm/177201644095 Blue Panasonic SL-S270 photo: https://static.mercdn.net/item/detail... Halo and devil horns in thumbnail image: https://www.freepik.com/free-vector/d... --------------------------------------------------------------------------- Please consider supporting my work on Patreon: / thisdoesnotcompute Follow me on social media! @thisdoesnotcomp --------------------------------------------------------------------------- Music by Epidemic Sound (https://www.epidemicsound.com).